Pulp Molding Manufacture of Paper Cans

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【Patent Name】 Pulp Molding Manufacture of Paper Cans Process [Applicant] Xu Huamin [Inventor] Xu Huamin [Address of Principal Applicant] 150006 Box 121, Yaojing Street, Nangang District, Harbin, Heilongjiang Province [Application Number] 200410075069.7
【 Application Date 】 2004.08.27
[Verification notice number] 1740442
【 Validation announcement date 】 2006.03.01
[Main classification number] D21J3/10(2006.01)I
[Classification] D21J3/10(2006.01)I D21D1/20(2006.01)I D21H21/14(2006.01)I D21H23/06(2006.01)I D21H17/00(2006.01)I
【Sovereign Items】 1. A pulp moulding process for the manufacture of paper cans, characterized by: 1 Selecting pulp or wood pulp with whiteness of 75% to 85%. 2 It is beaten with medium consistency refiner, and the degree of beating is 35°SR-55°SR. 3 Modulation pulp concentration 0.3%-2.5%, add absolutely dry pulp 0.001%-0.05% hydroxy silicone oil as a water repellent, add 0.001%-0.01% chitosan grafted starch as dry strength agent, add 0.01%- 0.1% paraffin was used as a water repellent and mixed well. 4 Using a slurry pump, the adjusted slurry is pumped into a pulp molded mold at a vacuum of 10-2mmHg-1.0mmHg for 0.5 minutes to 2 minutes under the conditions of adsorption molding. 5 At a pressure of 0.1 MPa to 10 MPa, the program heats up to 160-360 DEG C. The formed material in the pulp molding mold is dried to a moisture content of 6%-8%, and it is shaped into a paper can or a can lid.
[Instructions CD-ROM] D0609-1
[Abstract] The present invention is suitable for pulping molded paper cans and various paper cans by using various types of pulp as raw materials, such as pulping, pulping, adsorption molding, heat setting and the like. Due to the simple process, the invention has the characteristics of investment saving and easy operation.

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